Cameron Diaz's Colorist Spills on the Hottest Hair Trends for Spring

A celebrity colorist without a big ego can be as elusive as the perfect beachy highlights. Yet Tracey Cunningham—who has one of the most enviable client lists in the world, including Gwyneth Paltrow, Jennifer Lopez, and Kate Beckinsale—is more than willing to share the secrets to her success. Just check out Cunningham's Instagram, where her 25,000 followers can get many of her exact color formulations. So I was excited to talk with her about what she's seeing and loving for hair color this spring. Here are some of the highlights. (Get it?)

What's the biggest color trend this season? "Definitely going platinum, often followed with a pastel rinse—usually pink or lavender. I'm mostly doing that with noncelebrity clients."

What's the most common request you get? "Tipping out those ends. Everyone wants brighter, brighter, brighter. It's just youthful and pretty. It's ombré, but now it's not so much darkness at the roots."

Do people ask you to copy the styles of your celebrity clients? "People bring me pictures of Cameron all the time. She had to go really blonde for The Other Woman, but now she's much more golden. A lot of people also like Emma Stone's hair. She's red with blonde on the ends."

What's your secret to keeping colored hair looking healthy? "I always use this product called Olaplex. I mix it into the bleach, and it makes a huge difference. The hair looks really healthy even after being highly processed."